TYPO3 Core

Under certain circumstances the wrong flexform ist displayed in the backend. Try the following:
1) Create new content element
2) Select type "table" (& reload when asked)
3) Make sure the flexform displays the correct content
4) Select type "plugin" (& reload when asked)
5) Choose plugin type with flexfom, eg. "better login box" (& reload when asked)
6) Make sure the right flexform content ist displayed
7) Select type "table" again (& reload when asked)

The flexform in the table context has now the content from the login box.

Reproduced the bug also in 4.1.1
Sometimes the wrong flexform content is displayed initially when selecting a content element with flexform content (without calling a plugin first).
(issue imported from #M6699)